Identifying TO-3 transistor pins?

[Mark]

How do I differentiate between the E and B pins of a TO-3 case power
transistor? 2N3055 if I remember correctly. Thanks.

 

[Terry Pinnell]

"Mark" <kram12085@yahoo.com> wrote:

How do I differentiate between the E and B pins of a TO-3 case power
transistor? 2N3055 if I remember correctly. Thanks.

How do I differentiate between the FIVE copies of your post I've
received time stamped between 20:38 and 20:53?

--
Terry Pinnell
Hobbyist, West Sussex, UK

 

[Jim Thompson]

On 6 Dec 2004 12:53:08 -0800, "Mark" <kram12085@yahoo.com> wrote:

How do I differentiate between the E and B pins of a TO-3 case power
transistor? 2N3055 if I remember correctly. Thanks.

I believe the "standard" is:

Hold device so a line _between_ the pins is horizontal, and that line
is above the center-line of the package, then read, left-to-right, B-E

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

 

[Rich Grise]

On Mon, 06 Dec 2004 16:22:46 -0700, Jim Thompson wrote:

On 6 Dec 2004 12:53:08 -0800, "Mark" <kram12085@yahoo.com> wrote:

How do I differentiate between the E and B pins of a TO-3 case power
transistor? 2N3055 if I remember correctly. Thanks.

I believe the "standard" is:

Hold device so a line _between_ the pins is horizontal, and that line
is above the center-line of the package, then read, left-to-right, B-E

No, no! You hold it so the line through both pins is _below_ the
centerline, and then it's E-B. ;-)

Cheers!
Rich